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Finding the Fourth Proportional to 5,449.95, 8,181.90 and 4,536.72

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Solution

The fourth proportional to 5,449.95, 8,181.90 and 4,536.72 is: 6,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.95 : 8,181.90 = 4,536.72 : x
  2. Step 2: Convert to fraction form
    5,449.95/8,181.90 = 4,536.72/x
  3. Step 3: Cross multiply
    5,449.95x = 8,181.90 × 4,536.72
  4. Step 4: Simplify right side
    5,449.95x = 37,118,989.37
  5. Step 5: Solve for x
    x = 37,118,989.37/5,449.95
  6. Step 6: Final answer
    x = 6,810.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.